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Finding the Fourth Proportional to 124,329.70, 186,494.55 and 54,345.70

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Solution

The fourth proportional to 124,329.70, 186,494.55 and 54,345.70 is: 81,518.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,329.70 : 186,494.55 = 54,345.70 : x
  2. Step 2: Convert to fraction form
    124,329.70/186,494.55 = 54,345.70/x
  3. Step 3: Cross multiply
    124,329.70x = 186,494.55 × 54,345.70
  4. Step 4: Simplify right side
    124,329.70x = 10,135,176,865.94
  5. Step 5: Solve for x
    x = 10,135,176,865.94/124,329.70
  6. Step 6: Final answer
    x = 81,518.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.